AIIMS Bathinda and other GMCs in Punjab such as GGS Faridkot and GMC Patiala are both good medical colleges. The key difference between AIIMS Bathinda and GMCs is the teaching approach and culture.
AIIMS Bathinda also offers admission to PG courses twice a year, unlike GMCs. It is advantageous for students to appear for either the January Session or July Session without any pressure. AIIMS Bathinda has a good student-to-cadaver ratio compared to any GMCs.
Students can make connections at AIIMS Bathinda with seniors, faculty and alumni. This ecosystem helps students in showcasing their achievements or in their career path as well.
In conclusion, GMCs are also good options for students. However, AIIMS is a brand that stands out from other medical colleges as they are institutes of National Importance and are funded by the government. Although academics at AIIMS Bathinda are highly competitive due to limited seats. Students will have wonderful opportunities and exposure once they are selected.
Having friends in both colleges, I think I am the right person to answer this question.
My answer does not mean to demean GMCs but rather highlight the unique approach AIIMS has in various aspects that set it apart from other medical colleges. Moreover, they are institutes of national importance funded by the government and they are a notch higher than other AIIMS.